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They have an open-circulatory system. They do not have ventricles to carry through blood. Most mollusks have an open-circulatory system.

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Compare the circulatory system of each of the three major classes of mollusks?

In cephalopods like octopuses, the circulatory system is closed, with blood contained in vessels. Bivalves like clams have an open circulatory system where blood is pumped into a hemocoel. Gastropods, such as snails, have a mix of closed and open circulatory systems, with a heart that pumps blood through vessels but also into spaces around organs.


What is the circulation of a bivalves?

Bivalves have an open circulatory system, where blood is pumped by a heart into a hemocoel, bathes the tissues, and then is filtered through the gills for oxygen exchange before returning to the heart. This system is less efficient than closed circulatory systems found in some other animals.


Is your circulatory system open or closed?

A humans circulatory system is closed. Large creatures tend to have a closed system, while smaller creatures like insects and crustaceans have open circulatory systems. Closed is when there are vessels and the blood stays there. Open is when blood floats around the body. Hope it helps:)


Does a lancelet have an open or closed circulatory system?

like other cordates except urocortates, lancelet have closed-circulatory system.


Do arthropods have a open circulatory system?

Yes, most arthropods have an open circulatory system, which means that their blood, called hemolymph, directly bathes their tissues. This system is less efficient at transporting oxygen compared to closed circulatory systems found in vertebrates.

Related Questions

Compare the circulatory system of each of the three major classes of mollusks?

In cephalopods like octopuses, the circulatory system is closed, with blood contained in vessels. Bivalves like clams have an open circulatory system where blood is pumped into a hemocoel. Gastropods, such as snails, have a mix of closed and open circulatory systems, with a heart that pumps blood through vessels but also into spaces around organs.


Do amphibians have an open circulatory system or a closed circulatory system?

Amphibians have closed circulatory system Closed


Do earthworms have a closed or open circulatory system?

closed circulatory system


What is the circulation of a bivalves?

Bivalves have an open circulatory system, where blood is pumped by a heart into a hemocoel, bathes the tissues, and then is filtered through the gills for oxygen exchange before returning to the heart. This system is less efficient than closed circulatory systems found in some other animals.


Do platypuses have an open or closed circulatory system?

Platypuses have a closed circulatory system.


Do snails have a closed circulatory system?

No, they have open circulatory system.


Does a slug have a closed circulatory system?

No, open circulatory system


Do an octopus have an open circulatory system?

They have a closed circulatory system.


Is the human body a open or closed circulatory?

closed circulatory system


Does a grass hopper have an open or closed circulatory system?

The grasshopper has an open Circulatory system.


Do arthropods have open or closed circulatory system?

open circulatory systems


Does a giraffe have a closed or open circulatory system?

Closed